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Commission Directive (EU) 2015/1480 of 28 August 2015 amending several annexes to Directives 2004/107/EC and 2008/50/EC of the European Parliament and of the Council laying down the rules concerning reference methods, data validation and location of sampling points for the assessment of ambient air quality (Text with EEA relevance) · European Union

Section A of Annex IX is replaced by the following: ‘A. Minimum number of sampling points for fixed measurements of concentrations of ozone Minimum number of sampling points for fixed continuous measurements to assess compliance with target values, long — term objectives and information and alert thresholds where such measurements are the sole source of information. At least 1 station in areas where exposure of the population to the highest concentrations of ozone is likely to occur. In agglomerations, at least 50 % of the stations shall be located in suburban areas. 1 station per 25000 km^(2) for complex terrain is recommended.’ Population (× 1000) Agglomeration Other zones Rural background < 250 1 1 station/50000 km^(2) as an average density over all zones per country < 500 1 2 < 1000 2 2 < 1500 3 3 < 2000 3 4 < 2750 4 5 < 3750 5 6 > 3750 One additional station per 2 million inhabitants One additional station per 2 million inhabitants

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Source: EUR-Lex (Cellar) · retrieved 2026-10-16 · Text as adopted (Official Journal); later amendments are not incorporated in this text.